MCB 3020 Lecture Notes - Lecture 10: Lysis, Superoxide Dismutase, Microorganism
Document Summary
Functional types of media: supportive or general purpose media (e. g. tsa) Support the growth of many microorganisms: enriched media (e. g. blood agar) General purpose media supplemented by blood or other special nutrients: selective, differential. Selective media favor the growth of some microorganisms and inhibit growth of others: e. g. , macconkey agar. Differential media: distinguish between different groups of microorganisms based on their biological characteristics, e. g. , blood agar. Hemolytic versus nonhemolytic bacteria: e. g. , macconkey agar lactose fermenters versus nonfermenters. Blood agar- enriched and differential: blood agar supports the growth of many fastidious bacteria, can be differentiated based on their ability to produce hemolysins. Proteins that lyse red blood cells: hemolysis appears as a clear zone or greenish halo around the colony. Strict anaerobic microbes: all strict anaerobic microorganisms lack or have very low quantities of. Catalase: these microbes cannot tolerate o2, anaerobes must be grown without o2.
